MAX3222 Datasheet PDF – RS-232 Transceiver

Part Number : MAX3222

Function : Up to 1Mbps / True RS-232 Transceivers Using Four 0.1F External Capacitors

Package : 18 Pin SO, DIP Type

Manufacturers : Maxim Integrated

Pinouts :

MAX3222 datasheet

 

General Description

The MAX3222 / MAX3232 / MAX3237 / MAX3241 transceivers have a proprietary low-dropout transmitter out put stage enabling true RS-232 performance from a 3.0V to 5.5V supply with a dual charge pump. The devices require only four small 0.1µF external charge pump capacitors. The MAX3222, MAX3232, and MAX3241 are guaranteed to run at data rates of 120kbps while maintaining RS-232 output levels. The MAX3237 is guaranteed to run at data rates of 250kbps in the normal operating mode and 1Mbps in the MegaBaud™ operating mode, while maintaining RS-232 output levels.

Next Generation Device Features

1. For Smaller Packaging: MAX3228E/MAX3229E: +2.5V to +5.5V RS-232 Transceivers in UCSP

2. For Integrated ESD Protection:
MAX3222E/MAX3232E/MAX3237E/MAX3241E*/MAX3246E: ±15kV ESD-Protected, Down to 10nA 3.0V to 5.5V, Up to 1Mbps, True RS-232 Transceivers

3. For Low-Voltage or Data Cable Applications: MAX3380E/MAX3381E: +2.35V to +5.5V, 1μA, 2Tx/2Rx RS-232 Transceivers with ±15kV ESD-Protected I/O and Logic Pins

Applications

1. Notebook, Subnotebook, and Palmtop Computers
2. High-Speed Modems
3. Battery-Powered Equipment
4. Hand-Held Equipment
5. Peripherals
6. Printers

Other data sheets within the file : MAX3222CAP+, MAX3222CPN+, MAX3222CUP+, MAX3222CWN+

MAX3222 Datasheet PDF Download

MAX3222 pdf

MAX232 Datasheet PDF – RS-232 Drivers/Receivers

Part Number : MAX232, MAX232CPE

Function : +5V-Powered, Multichannel RS-232 Drivers/Receivers – Battery-Powered RS-232 Systems

Package : DIP 16 Pin

Manufacturers : Maxim Integrated

Image

MAX232 datasheet pd

Description :

The MAX220, MAX232 Thru MAX249 family of line drivers/receivers is intended for all EIA/TIA-232E and V.28/V.24 communications interfaces, particularly applications where ±12V is not available.

These parts are especially useful in battery-powered systems, since their low-power shutdown mode reduces power dissipation to less than 5µW. The MAX225, MAX233, MAX235, and MAX245/MAX246/MAX247 use no external components and are recommended for applications where printed circuit board space is critical.

The MAX220-MAX249 are offered in 26 different packages with temperatures from 0 to +70°C up to -55°C to +125°C. See ordering information table at the end of the data sheet for all package and temperature options.

 

Pinouts :
MAX232 Pinout Image

RS-232 Drivers
The typical driver output voltage swing is ±8V when loaded with a nominal 5kΩRS-232 receiver and VCC=+5V. Output swing is guaranteed to meet the EIA/TIA-232E and V.28 specification, which calls for ±5V minimum driver output levels under worst-case conditions. These include a minimum 3kΩload, VCC= +4.5V, and maximum operating temperature. Unloaded driver output voltage ranges from (V+ -1.3V) to (V- +0.5V).

RS-232 Receivers
EIA/TIA-232E and V.28 specifications define a voltage level greater than 3V as a logic 0, so all receivers invert. Input thresholds are set at 0.8V and 2.4V, so receivers respond to TTL level inputs as well as EIA/TIA-232E and V.28 levels. The receiver inputs withstand an input overvoltage up to ±25V and provide input terminating resistors with nominal 5kΩvalues. The receivers implement Type 1 interpretation of the fault conditions of V.28 and EIA/TIA-232E.

max232 Datasheet Selection Table

Applications/Uses

1. Battery-Powered RS-232 Systems
2. Interface Translation
3. Low-Power Modems
4. Multidrop RS-232 Networks
5. ortable Computing

Reference Site : [ Wikipedia MAX232 Info ]

MAX232 Datasheet PDF Download

MAX232 pdf

Other data sheets within the file : MAX220 Thru MAX249, MAX222C-D, MAX223C-D